Thick Film Resistor Networks
R Series
(Single-in-Line, Low Profile )
Feature
Wide resistance range: 2291 to 1M (1 O - 3.3 M available)
Miniature package with maximum sealed heights 0.2"(5.08mm)
Highly stable thick film products
Products protected by tough epoxy conformal coating
Reduces total assembly cost
Mixed value resistances available
PART NUMBERING SYSTEM
R
A
09
103
G
Meritek Series
Circuit Configurations
Element No.
2 – 20
Resistance Value
The first two digits are significant figures
Of resistance value and the third denotes the number of zeros following
CODE
331
472
223
104
Value
330
4.7K
22K
100K
Resistance Tolerance
CODE
Tolerance
F
± 1%
G
± 2%
J
± 5%
Construction and Dimension Rev. 7
R Series
Thick Film Resistor Networks
(Single-in-Line, Low Profile )
Item
Requirement
Test Methods
Resistance to soldering heat
∆R ≤ ± (0.5% + 0.05Ω)
With 350±5ºC , for 3 seconds
Solderability
Exterior
Over 95% of termination must be
covered with new solder.
∆R ≤ ± (0.5% + 0.05Ω)
No mechanical damage.
No mechanical defect.
After immersing flus, dip in the 260ºC
Max. solder bath for 3±0.5 sec.
Tensile: 1Kg for 30 Sec.
Bending: 500g for 2 times
Visual
Size
Within specification
Calipers
Terminal Strength (Tensile Strength)
Mechanical Characteristics Electrical Characteristics Item
Requirement
Test Methods
Temperature Coefficient (ppm / °C)
R<50Ω , ±250 PPM/ºC
50Ω≤R<2.2MΩ , ±100PPM/ºC
R≥2.2MΩ , ±250PPM/ºC
Short-Time Overload
∆R ≤ ± (0.5% + 0.05Ω)
TCR (PPM/°C)= ோଵ X ்ଶି்ଵ
T1= 25ºC
T2= Test Temperature (-55°C ~ +125ºC)
R1: Resistance at Temp. T1
R2: Resistance at Temp. T2
2.5X Rated Voltage for 5 Sec. (200V max.)
Measure resistance after 30 minutes.
ோଶ ିோଵ
ଵ
Rev. 7